| AAC | Augmentative and alternative communication |
| AOI | Area of interest |
| CP | Cerebral palsy |
| GMFCS | Gross Motor Function Classification Scale |
| MDPI | Multidisciplinary Digital Publishing Institute |
| MSEL | Mullen Scales of Early Learning |
| PLS-4UK | Pre-School Language Scales UK—4th Edition |
| RTF | Reaction Time to Fixation |
| STF | Single-target fixation |
| TTFS | Target–target fixation shift |
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